Fixed cutter drill bit

Details Fixed cutter drill bit Fixed cutter drill bit

2006-04-06

2010-06-01

Thompson, Kenneth (Department: 3672)

Boring or penetrating the earth

With bit wear signal generating

C175S385000, C175S406000

Reexamination Certificate

active

07726415

ABSTRACT:
The fixed cutter drill bit disclosed utilizes a unique piloting section and reaming section carefully designed to impart several specific operational advantages. In the piloting section, cutting structures have been arranged so as to create offsetting cutting forces that result in a net zero imbalance during operation. Furthermore, the piloting section utilizes carefully placed shock studs which aid in protecting the primary cutting structure. In addition, the location of the fluid supply nozzles on the body of the reamer section serves to indicate the occurrence of a catastrophic cutting structure failure below the pilot gage.

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